Felt TT and Tri bikes aren't just wind-tunnel tested, they're wind-tunnel developed—and the end result is clear. Consider the Felt DA, the fastest TT bike in the world. Design innovations include the Bayonet™ 2 Steering System, which effectively moves the fork’s steerer outside the frame and increases steering stiffness by 60 percent, a front-wheel-conforming downtube and aerodynamic seattube-conforming seatpost, which also reduce wind drag. It all adds up to a bike that is unparalleled when it comes to racing against the clock.